1. public class Person implements Serializable{
   
2. private static final long serialVersionUID = 1L;
   
3. private static final Person p = new Person("jzk",1);;
   
4. private String name;
   
5. private int age;
   
6. 
   
7. private Person(String name, int age) {
   
8.           this.name = name;
   
9.           this.age = age;
   
10. }
    
11. public static Person getInstance(){
    
12.           return p;
    
13. }
    
14. public String getName() {return name;}
    
15. public int getAge() {  return age;}
    
16. 
    
17. private Object writeReplace()throws ObjectStreamException{
    
18.           return new Dog("旺财");         //此处将序列化的对像用Dog来替换                                         }
    
19. 
    
20. private Object readResolve()throws ObjectStreamException{
    
21.           return new Person("jkk",2);    //此处读取的时候用new Person("jkk",2)来替换读取的对像值      
    
22. }
    
23. }

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1. public class SerializeOperate {
   
2. public static void main(String[] args){
   
3.   
   
4.   ObjectOutputStream oos = null;
   
5.   ObjectInputStream ois = null;
   
6.   
   
7.   try {
   
8.    
   
9.    oos = new ObjectOutputStream(new FileOutputStream("E:\\serialize.txt"));
   
10.    ois = new ObjectInputStream(new FileInputStream("E:\\serialize.txt"));
    
11.    oos.writeObject(Person.getInstance());
    
12.    //根据上面的注释的理解,,,,,,,,,,,,这个地方为什么会报ClassCastException?????????????????////
    
13.    System.out.println(Person.getInstance()==(Person)ois.readObject());  
    
14.   
    
15.   } catch (IOException e) {
    
16.    e.printStackTrace();
    
17.    throw new RuntimeException("序列化异常!");
    
18.   } catch (ClassNotFoundException e) {
    
19.    e.printStackTrace();
    
20.    throw new RuntimeException("反序列化异常!");
    
21.   }finally{
    
22.    try {
    
23.     if(oos != null)
    
24.      oos.close();
    
25.    }catch (IOException e) {
    
26.     throw new RuntimeException("关闭列化流异常!");
    
27.    }
    
28.    try {
    
29.     if(ois != null)
    
30.      ois.close();
    
31.    }catch (IOException e) {
    
32.     throw new RuntimeException("关闭反序列化流异常!");
    
33.    }
    
34.   }
    
35. }
    
36. }
    

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1. public class Person implements Serializable{
   
2. private static final long serialVersionUID = 1L;
   
3. private static final Person p = new Person("jzk",1);;
   
4. private String name;
   
5. private int age;
   
6. 
   
7. private Person(String name, int age) {
   
8.           this.name = name;
   
9.           this.age = age;
   
10. }
    
11. public static Person getInstance(){
    
12.           return p;
    
13. }
    
14. public String getName() {return name;}
    
15. public int getAge() {  return age;}
    
16. 
    
17. private Object writeReplace()throws ObjectStreamException{
    
18.           return new Dog("旺财");         //此处将序列化的对像用Dog来替换                                         }
    
19. 
    
20. private Object readResolve()throws ObjectStreamException{
    
21.           return new Person("jkk",2);    //此处读取的时候用new Person("jkk",2)来替换读取的对像值      
    
22. }
    
23. }

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1. public class SerializeOperate {
   
2. public static void main(String[] args){
   
3.   
   
4.   ObjectOutputStream oos = null;
   
5.   ObjectInputStream ois = null;
   
6.   
   
7.   try {
   
8.    
   
9.    oos = new ObjectOutputStream(new FileOutputStream("E:\\serialize.txt"));
   
10.    ois = new ObjectInputStream(new FileInputStream("E:\\serialize.txt"));
    
11.    oos.writeObject(Person.getInstance());
    
12.    //根据上面的注释的理解,,,,,,,,,,,,这个地方为什么会报ClassCastException?????????????????////
    
13.    System.out.println(Person.getInstance()==(Person)ois.readObject());  
    
14.   
    
15.   } catch (IOException e) {
    
16.    e.printStackTrace();
    
17.    throw new RuntimeException("序列化异常!");
    
18.   } catch (ClassNotFoundException e) {
    
19.    e.printStackTrace();
    
20.    throw new RuntimeException("反序列化异常!");
    
21.   }finally{
    
22.    try {
    
23.     if(oos != null)
    
24.      oos.close();
    
25.    }catch (IOException e) {
    
26.     throw new RuntimeException("关闭列化流异常!");
    
27.    }
    
28.    try {
    
29.     if(ois != null)
    
30.      ois.close();
    
31.    }catch (IOException e) {
    
32.     throw new RuntimeException("关闭反序列化流异常!");
    
33.    }
    
34.   }
    
35. }
    
36. }
    

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